/* Custom CSS for Shopee Fee Calculator */

:root {
    --primary-color: #007bff;
    --success-color: #28a745;
    --info-color: #17a2b8;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --dark-color: #343a40;
    --light-color: #f8f9fa;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-success: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    --gradient-info: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-warning: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
}

/* Header Styling */
header {
    background: var(--gradient-primary) !important;
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
}

header h1 {
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

/* Card Styling */
.card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.card-header {
    border-bottom: none;
    padding: 1rem 1.5rem;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* Form Controls */
.form-control, .form-select {
    border-radius: 10px;
    border: 2px solid #e9ecef;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
    transform: scale(1.02);
}

.form-label {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

/* Checkboxes */
.form-check-input {
    width: 1.2em;
    height: 1.2em;
    margin-top: 0.1em;
    border-radius: 6px;
}

.form-check-input:checked {
    background-color: var(--success-color);
    border-color: var(--success-color);
}

.form-check-label {
    font-weight: 500;
    color: var(--dark-color);
    cursor: pointer;
}

/* Summary Cards */
.card.bg-primary {
    background: var(--gradient-primary) !important;
}

.card.bg-success {
    background: var(--gradient-success) !important;
}

.card.bg-info {
    background: var(--gradient-info) !important;
}

.card.bg-warning {
    background: var(--gradient-warning) !important;
}

.card.bg-primary, .card.bg-success, .card.bg-info {
    color: white !important;
}

.card.bg-warning {
    color: var(--dark-color) !important;
}

/* Table Styling */
.table {
    border-radius: 10px;
    overflow: hidden;
}

.table thead th {
    background: var(--gradient-primary);
    color: white;
    border: none;
    font-weight: 600;
    padding: 1rem;
}

.table tbody tr {
    transition: all 0.2s ease;
}

.table tbody tr:hover {
    background-color: rgba(0, 123, 255, 0.05);
    transform: scale(1.01);
}

.table td {
    padding: 1rem;
    vertical-align: middle;
    border-color: #e9ecef;
}

/* Button Styling */
.btn {
    border-radius: 10px;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Footer */
footer {
    background: var(--light-color) !important;
    border-top: 1px solid #dee2e6;
}

footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

footer a:hover {
    color: var(--dark-color);
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container-fluid {
        padding: 0 15px;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .table-responsive {
        font-size: 0.9rem;
    }
    
    .card-header {
        padding: 0.75rem 1rem;
    }
    
    header h1 {
        font-size: 1.8rem;
    }
}

@media (max-width: 576px) {
    .row .col-md-3 {
        margin-bottom: 1rem;
    }
    
    .card-body {
        padding: 0.75rem;
    }
    
    .form-control, .form-select {
        padding: 0.5rem 0.75rem;
        font-size: 0.9rem;
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: #0056b3;
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Success/Error Messages */
.alert {
    border-radius: 10px;
    border: none;
    font-weight: 500;
}

.alert-success {
    background: var(--gradient-success);
    color: white;
}

.alert-danger {
    background: var(--gradient-warning);
    color: var(--dark-color);
}

/* Tooltip Styling */
.tooltip {
    font-size: 0.9rem;
}

.tooltip-inner {
    background-color: var(--dark-color);
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
}

/* Chart Container */
canvas {
    max-width: 100%;
    height: auto !important;
}

/* Print Styles */
@media print {
    .card {
        box-shadow: none;
        border: 1px solid #dee2e6;
    }
    
    .btn, .form-control, .form-select {
        display: none;
    }
    
    .table {
        font-size: 0.8rem;
    }
}